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Relationship between three palliative care outcome scales.

Irene J Higginson1, Nora Donaldson

  • 1Department of Palliative Care and Policy, King's College London, Weston Education Centre, Cutcombe Road, London SE5 9RJ, UK. irene.higginson@kcl.ac.uk

Health and Quality of Life Outcomes
|November 30, 2004
PubMed
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This study identified three key factors for measuring palliative care outcomes in advanced cancer patients: self-sufficiency, positivity, and symptom management. These findings simplify outcome assessment in clinical practice and research.

Area of Science:

  • Palliative Care
  • Oncology
  • Psychometrics

Background:

  • Assessing palliative outcomes is crucial but measurement challenges persist.
  • Core components of palliative outcome measures remain unidentified.
  • This study addresses the need for clarity in measuring outcomes for advanced cancer patients.

Purpose of the Study:

  • To determine the relationships between three widely used palliative outcome scales.
  • To identify the factorial structure of these combined scales in advanced cancer patients.
  • To refine outcome measurement in palliative care.

Main Methods:

  • Patients receiving palliative care were interviewed using the EQoL, POS, and Herth Hope Index scales.
  • Exploratory and confirmatory factor analysis were employed to analyze scale relationships and structure.

Related Experiment Videos

  • Advanced statistical techniques were used to validate a refined measurement model.

    • Main Results:

    • Exploratory analysis revealed variability explained by factors within individual scales (EQoL: 75%, POS: 63%, Hope Index: 69%).
    • Combined analysis initially identified five factors, reduced to four (self-sufficiency, positivity, symptoms, spiritual) via confirmatory analysis.
    • A final 11-item model with improved fit was achieved after removing the spiritual factor.

    Conclusions:

    • Three core factors—self-sufficiency, positivity, and symptom management—were identified as important palliative outcomes.
    • These identified factors offer a simpler approach to measuring outcomes in clinical settings.
    • The findings contribute to more effective and streamlined palliative care research and practice.